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* Log rotation for tendermint and BigchainDB using Monit * Change file size from 100KB used for testing to 200 MB for test envs * Add docs for log rotation * remove --consensus.create_empty_blocks from monit start Because already taken care of in the config file * do not run bigchaindb with debug flag instead use config file * Address comments I - Rephrase log rotation to imply monit is not default - Add statement to explain where bigchaindb log files are created - Fix HTML comment - Add log rotation to index * Address comments II
49 lines
2.0 KiB
Markdown
49 lines
2.0 KiB
Markdown
<!---
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Copyright BigchainDB GmbH and BigchainDB contributors
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SPDX-License-Identifier: (Apache-2.0 AND CC-BY-4.0)
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Code is Apache-2.0 and docs are CC-BY-4.0
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--->
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# Log rotation for a BigchainDB node
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Each BigchainDB node comprises of 3 main services:
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- BigchainDB server
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- Tendermint
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- MongoDB
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To run a BigchainDB test network/dev node, that is expected to run for relatively longer periods
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of time, we need to consider the log rotation of these services i.e. we do not want the logs taking
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up large amounts of storage and making the node unresponsive or get into bad state.
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## Log rotation for MongoDB
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Currently, we leave the log rotation of MongoDB to the BigchainDB administrator. For more notes on MongoDB log rotation
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please refer to [MongoDB docs](https://docs.mongodb.com/v3.6/tutorial/rotate-log-files/).
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## Log rotation for BigchainDB
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Log rotation is baked into BigchainDB server using the `logging` module. BigchainDB server logs information into the following files:
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- `bigchaindb.log`
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- `bigchaindb-errors.log`
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- `bigchaindb-benchmark.log`
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These log files are created by default in the directory from where you run `bigchaindb start`, if you are using `monit`, from
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[How to Set Up a BigchainDB Network](../simple-deployment-template/network-setup.md) guide, the default directory is: `$HOME/.bigchaindb-monit/logs`
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The logs for BigchainDB server are rotated when any of the above mentioned file exceeds `209715200 bytes (i.e. approximately 209 MB).`.
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## Log rotation for Tendermint
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In order to set up log rotation of Tendermint, you will need to use the [Monit]( https://www.mmonit.com/monit) scripts provided by us. Covered in the [How to Set Up a BigchainDB Network](../simple-deployment-template/network-setup.md) guide.
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```bash
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$ monit -d 1
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```
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Monit monitors both Tendermint and BigchainDB processes as well as the Tendermint log files, `tendermint.out.log` and `tendermint.err.log`. Default location for these log files is:
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`$HOME/.bigchaindb-monit/logs`.
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Tendermint logs are rotated if any of the above mentioned log files exceeds `200 MB` in size.
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